| An efficient Approach to Modify the Catalyst Activity for the Hydrogenation of Nitrobenzene |
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| 引用本文： | Wei Min MO2,Bo Shun WAN1*,Shi Jian LIAO1 1Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023 2College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014. An efficient Approach to Modify the Catalyst Activity for the Hydrogenation of Nitrobenzene[J]. 中国化学快报, 2001, 0(9) |
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| 作者姓名： | Wei Min MO2 Bo Shun WAN1* Shi Jian LIAO1 1Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 2College of Chemical Engineering Zhejiang University of Technology Hangzhou 310014 |
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| 作者单位： | Wei Min MO2，Bo Shun WAN1*，Shi Jian LIAO1 1Dalian Institute of Chemical Physics，Chinese Academy of Sciences，Dalian 116023 2College of Chemical Engineering，Zhejiang University of Technology，Hangzhou 310014 |
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| 摘 要： | Transition metal complexes have been used extensively for the hydrogenation in homogeneous system probably due to their high catalytic selectivities under mild operating conditions. In order to improve the homogeneous catalyst system, some studies on the homogeneous or soluble polymer-supported bimetallic catalysts have been recently carried out and enhanced activity, better selectivity were observed in selective hydrogenation, hydrodehalogenation, carbonylation, hydroformylation and regioselec…
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An efficient Approach to Modify the Catalyst Activity for the Hydrogenation of Nitrobenzene |
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| Wei Min MO,Bo Shun WAN,Shi Jian LIAO Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian College of Chemical Engineering,Zhejiang University of Technology,Hangzhou. An efficient Approach to Modify the Catalyst Activity for the Hydrogenation of Nitrobenzene[J]. Chinese Chemical Letters, 2001, 0(9) |
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| Authors: | Wei Min MO Bo Shun WAN Shi Jian LIAO Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian College of Chemical Engineering Zhejiang University of Technology Hangzhou |
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| Affiliation: | Wei Min MO2,Bo Shun WAN1*,Shi Jian LIAO1 1Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023 2College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014 |
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| Abstract: | The addition of a suitable amount of PPh3 to PdCl2 or PdCl2(PhCN)2 in situ can considerably increase the catalytic activity in the hydrogenation of nitrobenzene, while the catalytic activities of PdCl2 (reduced)+PPh3, PdCl2(PPh3)2 and Pd(PPh3)4 are very poor. The poisoning of catalyst by mercury indicates that the catalytically active species are composed of Pd(0) colloidal particles. Transmission electron micrographs show that the size of nanometric Pd(0) particles of PdCl2 with PPh3 added in situ is smaller than that of PhCl2(PPh3) or PdCl2 (reduced)+PPh3. A synergic effect of bimetallic catalysts such as PdCl2+nPPh3+NiCl2 (n= 0.5, 1) and PdCl2(PhCN)2+PPh3+FeCl3 gives rise to a further increase in the catalytic activity. |
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| Keywords: | Bimetallic catalyst synergic effect catalytic hydrogenation palladium. |
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